LUBRICANTS FOR METAL POWDER COMPOSITIONS, METAL POWDER COMPOSITION CONTAINING LUBRICANT, PROCESS OF WINNING OF SINTERED PRODUCTS WITH USE OF LUBRICANT

摘要

FIELD: preparation of metal powder compositions. SUBSTANCE: lubricant for metal powder composition contains oligomer of amide type that has molecular weighted average not more than 30000. Metal powder composition includes powder based on iron and above- mentioned lubricant. Process of winning of sintered products from metal powder composition consists in mixing powder based on iron with lubricant, in preheating of metal powder composition to temperature specified in advance, in its compaction in mould and sintering at temperature above 1050 C. Lubricant is used in metal powder compositions in agreement with invention during hot compaction. EFFECT: high strength and density of compacted products under unsintered state, high density in sintered state, low pushing effort and high compactness of metal powder composition. 17 cl, 6 tbl